56686043 has 2 divisors, whose sum is σ = 56686044. Its totient is φ = 56686042.

The previous prime is 56686037. The next prime is 56686051. The reversal of 56686043 is 34068665.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56686043 - 2⁴ = 56686027 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 56685988 and 56686006.

It is not a weakly prime, because it can be changed into another prime (56686093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28343021 + 28343022.

It is an arithmetic number, because the mean of its divisors is an integer number (28343022).

Almost surely, 2^56686043 is an apocalyptic number.

56686043 is a deficient number, since it is larger than the sum of its proper divisors (1).

56686043 is an equidigital number, since it uses as much as digits as its factorization.

56686043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 56686043 is about 7529.0134147842. The cubic root of 56686043 is about 384.1422247870.

It can be divided in two parts, 5668 and 6043, that added together give a palindrome (11711).

The spelling of 56686043 in words is "fifty-six million, six hundred eighty-six thousand, forty-three".